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anyanavicka [17]
3 years ago
8

Janie has \$3$3dollar sign, 3. She earns \$1.20$1.20dollar sign, 1, point, 20 for each chore she does and can do fractions of ch

ores. She wants to earn enough money to buy a CD for \$13.50$13.50dollar sign, 13, point, 50.
Mathematics
2 answers:
dem82 [27]3 years ago
7 0
It’s 13 pretty sure I think idk so I hope u get it right
Sholpan [36]3 years ago
6 0

Answer:

1.20c+3 ≥ 13.50 and c ≥ 8.75 for the graph

Step-by-step explanation:

I took the khan academy test

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Andre and Priya are tracking the number of steps they walk. Andre records that he can walk 6000 steps in 50 minutes. Priya write
Simora [160]

Andre walks more steps than Priya.

To find out who many steps each one of them walks in a week, we have to carry out different calculations starting with Andre.

                 Calculation for number of steps taken by Andre

Andre takes 6000 steps in 50 minutes. We can use this information to scale up his number of steps over a period of 5 hours(300 minutes.). The quickest way to do this calculation, is to notice that there are 6 different 50 minute segments in 300 minutes. This means that the number of steps taken in 5 hours is 6\times 6000=36000 steps.

Another way to do this calculations is to use proportions

6000=50\\x=300\\=>50x=300\times6000=1800000\\=>x=36000.

Andre takes 36000 steps that week.

                 Calculation for number of steps taken by Priya

The number of steps taken by Priya is given by the is given by the function y=118x where x is the time in minutes. Priya walks for a total of 5 hours or 300 minutes. We calculate the number of steps she takes as shown below,

y=118x\\y=118\times 300\\y=35400.

Priya takes a total of 35400 steps.

Since  36000 steps is greater than 35400 steps, we conclude that Andre walks more steps than Priya.

3 0
3 years ago
A cylinder has a height of 14 millimeters and a radius of 16 millimeters. What is its volume?
pantera1 [17]

Answer:

11253.76

Step-by-step explanation:

To find the volume of a cylinder we must utilise the volume of cylinder formula which is

→ Volume of cylinder = π × r² × h

Where 'r' is the radius and 'h' is the height so let's start substituting in the values,

→ Volume of cylinder = π × r² × h

⇒ Substitute in 3.14 for π, 14 for 'h' and 16 for 'r'

→ Volume of cylinder = 3.14 × 16² × 14

⇒ Simplify

→ Volume of cylinder = 11253.76

So a cylinder has a height of 14 millimetres and a radius of 16 millimetres has a volume of cylinder 11253.76 inches³

4 0
3 years ago
Question 6 of 20
LuckyWell [14K]

Answer:

The answer is B

Step-by-step explanation:

It's just a matter of following the sequence

7 0
4 years ago
Help me outtt please
wel

Answer:the third one

Step-by-step explanation:

8 0
3 years ago
Solve each literal equation for 'K'.<br> a) T=4K/M b) bm-Kn=14
77julia77 [94]
a) T = 4K / M

1) multiply both sides by M => TM = 4K

2) divide both sides by 4 => K = TM / 4

Answer: K = TM / 4

b) bm - Kn = 14

1) add Kn to both sides => bm = 14 + Kn

2) subtract 14 from both sides => bm - 14 = Kn

3) divide both terms by n => K = [bm - 14] / n

Answer: K = [bm - 14] / n


6 0
3 years ago
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